In fact, continued process verification is a requirement and expectation of validation per FDA requirements and guidance. The integration of development work, process conformance, and continuing verification provides assurance that the product or process will consistently remain in control throughout the entire product lifecycle.

An organization’s validation process efforts must account for the complete product lifecycle, including (a) developmental procedures adapted for qualification of a drug product commencing with its research and development phase, (b) rationale for adapting a best fit formula which represents the relationship between required outputs and specified inputs, and (c) procedure for manufacturing. Each step is required to be justified and precisely monitored in order to provide a quality food and drug product. The FDA emphasizes the importance of a product lifecycle approach in its evaluation of manufacturer regulatory compliance.